138 26. ROSACEJE. 



v. SYSTYL^E. Sep. deciduous. Styles [more or less] united into 

 a protruding column. St. arching or trailing, with uniform 

 strong hooked prickles. [Fr. with a conspicuous disk.] 



12. R. stylosa (Desv.) ; prickles equal hooked, Its. usually 

 simply serrate slightly hairy beneath [rarely also above] ? sep. 

 refiexed deciduous pinnate with a tapering point, fr. ovate with 

 a prominent disk. E. B. 1895. JR. bibracteata (Bast.) ed. 

 viii. St. erect- arching to 8 12 ft. in height. El. pale pink 

 [or white] 3 6 ; ped. aciculate and setose ; column of styles 

 falling short of stam. glabrous. [ rt . Desvauxii (Bak.) ; Its. slightly 

 hairy above decidedly so beneath, C white, ped. glandular. /3. opaca 

 (Bak.) ; Its. much more hairy, fl. white, ped. naked, y. E. systyla (Bast.) ; 

 Its. glabrous above hairy principally on the veins beneath, fl. pink, ped. 

 glandular. 8. JR. leucochroa (Desv.) ; like R. systyla but fl. white, ped. 

 glandular shorter, disk less prominent, styles less agglutinated, e. E. 

 pseudo-rusticana (Crep.) ; Its. glabrous or with a few hairs on the mid- 

 rib beneath, fl. white, ped. glandular, disk very prominent. . E. virffinea 

 (Rip.) ; Its. glabrous simply serrate, fl. white, ped. naked, fr. globose. 

 rj. E. evanida (Christ); Its. almost glabrous doubly serrate, ped. glandular.] 

 Chiefly in the S. of England. Sh. VI. VII. E. 



13. R. arverisis (Huds.) ; prickles equal hooked, Its. [usually] 

 simply serrate and quite glabrous, sep. reflexed deciduous with 

 a short point simply pinnate, fr. subglobose with a convex 

 disk -E. B. 188. St. trailing. Lts. nearly flat. El. white 

 usually 4 6 ; ped. glandular ; column of styles equalling the 

 stam. glabrous. [/3. E. bibracteata (Bast.) ; more robust, sep. rather 

 more compound, fr. obovoid. y. E. cjallicoides (Desegl.) ; upper part of 

 st. very glandular, fr. ovoid, d. E. ovata (Lej.) ; prickles dilated cir- 

 cular at the base, Its. hairy on the midrib beneath, fl. larger, fr. ovoid. 

 . reptans (Crep.); Its. doubly serrate.] Hedges and thickets. 

 Sh. VI. VII. E. S. I. 



13*. E. sempermrens (L.) ; 1. evergreen shining, those on the fl. 

 branches often of only 5 Its., column of styles hairy. E. Melrioi 

 (Towndrow) from Madresfield, Wore., with glabrous styles has been 

 referred to this species. 



Index to Rosa. 



agrestis, 8. Blondeana, 10. concinna, 9. 



andegavensis, 10. Borreri, 9. cordifolia, 2. 



apricorum, 6. Briggsii, 7. coriifolia, 11. 



arvatica, 10. caerulea, 4. cryptopoda, 8. 



arvensis, 13. cassia, 10. cuspidatoides, 5. 



aspernata, 10. canina, 10. decipiens, 9. 



Baker i, 11. celerata, 11. Desvauxii, 12. 



bibracteata, 12, 13. cinerascens, 5. Doniana, 3. 



Billietii, 8. cornosa, 0. dumalis, 10. 



